ATE365029T1 - Verbesserte schweissenmaske - Google Patents

Verbesserte schweissenmaske

Info

Publication number
ATE365029T1
ATE365029T1 AT04729164T AT04729164T ATE365029T1 AT E365029 T1 ATE365029 T1 AT E365029T1 AT 04729164 T AT04729164 T AT 04729164T AT 04729164 T AT04729164 T AT 04729164T AT E365029 T1 ATE365029 T1 AT E365029T1
Authority
AT
Austria
Prior art keywords
liquid crystal
crystal screen
condition
activated
electrical circuit
Prior art date
Application number
AT04729164T
Other languages
English (en)
Inventor
Enrico Loewenthal
Original Assignee
Elto Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elto Spa filed Critical Elto Spa
Application granted granted Critical
Publication of ATE365029T1 publication Critical patent/ATE365029T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A61F9/065—Masks, shields or hoods for welders use of particular optical filters
    • A61F9/067—Masks, shields or hoods for welders use of particular optical filters with variable transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Liquid Crystal (AREA)
  • Physical Vapour Deposition (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Adhesives Or Adhesive Processes (AREA)
AT04729164T 2004-01-12 2004-04-23 Verbesserte schweissenmaske ATE365029T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000009A ITTO20040009A1 (it) 2004-01-12 2004-01-12 Maschera per saldatura perfezionata.

Publications (1)

Publication Number Publication Date
ATE365029T1 true ATE365029T1 (de) 2007-07-15

Family

ID=34717651

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04729164T ATE365029T1 (de) 2004-01-12 2004-04-23 Verbesserte schweissenmaske

Country Status (7)

Country Link
US (1) US20050151888A1 (de)
EP (1) EP1722733B1 (de)
AT (1) ATE365029T1 (de)
DE (1) DE602004007167T2 (de)
ES (1) ES2289510T3 (de)
IT (1) ITTO20040009A1 (de)
WO (1) WO2005074849A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012039544A2 (ko) * 2010-09-20 2012-03-29 Go Hyeon-Seok 용접마스크
US10209532B2 (en) 2014-03-31 2019-02-19 Jonathan MacDonald PARKER Switchable facemask for simulating smoke

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH197104A (de) * 1937-03-24 1938-04-15 Felix Lagutt Augenschutzmaske für Schweisser.
US4039803A (en) * 1976-04-08 1977-08-02 Mack Gordon Electro-optic welding helmet lens assembly
US4039254A (en) * 1976-05-27 1977-08-02 Mack Gordon Electro-optic welding lens assembly using multiple liquid crystal light shutters and polarizers
US4241286A (en) * 1979-01-04 1980-12-23 Mack Gordon Welding helmet lens assembly
US4237557A (en) * 1979-07-30 1980-12-09 Mack Gordon Control system for welding helmet liquid crystal light shutter
DE29602946U1 (de) * 1996-02-20 1996-04-04 Jupiter Schweis Reparatur Und Anlage zum elektrischen Lichtbogen-, insbesondere (MIG/MAG-) Schutzgas-Lichtbogenschweißen

Also Published As

Publication number Publication date
ITTO20040009A1 (it) 2004-04-12
EP1722733A1 (de) 2006-11-22
DE602004007167T2 (de) 2008-02-28
DE602004007167D1 (de) 2007-08-02
US20050151888A1 (en) 2005-07-14
WO2005074849A8 (en) 2006-02-23
EP1722733B1 (de) 2007-06-20
ES2289510T3 (es) 2008-02-01
WO2005074849A1 (en) 2005-08-18

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Legal Events

Date Code Title Description
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